A synthetic process route medical glutaraldehyde

The present invention discloses a process route for synthesizing medical glutaraldehyde, dihydropyran the alkyl ether by distillation under reduced pressure separating high boiling substances, obtaining fine dihydropyran alkyl ethers. Then using a buffer solution as a catalyst, the addition of water hydrolysis, the reaction solution by continuous distillation under reduced pressure, to obtain a high-purity medical glutaraldehyde. Route the present invention the process is stable, high yield, stable color number, competitive products.